Notice how little time players like Clayton spend in one spot though. I think this dilemma depends on two factors

1) Your shortstop really has to be good defensively.

Before you reply, I would point out that Everett rates as the best defensive shortstop in baseball according to The Fielding Bible but so many shortstops that are thought to be good actually aren't.

2) You have offense at the other positions

Seven productive hitters is good, six is solid, five is average. When you start dipping into four you're struggling. Our problem is that our shortstop, centerfielder, right fielder, and left fielder have been unproductive most of the season. Putting in Lamb and Burke has helped stem the tide though.